CN217951228U

CN217951228U - Multiple sealing structure of rotating roller body

Info

Publication number: CN217951228U
Application number: CN202222429226.6U
Authority: CN
Inventors: 沈军; 芦伟; 梁彦兵; 姚中海; 陈小刚; 赵峰; 任兵; 孙震; 刘志刚; 张晓东
Original assignee: Cofco Engineering Equipment Zhangjiakou Co ltd
Current assignee: Cofco Engineering Equipment Zhangjiakou Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2022-12-02
Anticipated expiration: 2032-09-14

Abstract

The utility model relates to the technical field of mechanical seal, in particular to a multiple sealing structure of a rotating roller body; the device comprises a fixed base arranged at the end part of a rotating shaft of a roller body, a felt ring, a framework oil seal, a floating end bearing and a positioning end bearing, wherein the felt ring, the framework oil seal, the floating end bearing and the positioning end bearing are arranged in the fixed base and are sequentially far away from the end side of the roller body; the roller comprises a roller body, wherein two ends of the roller body are sleeved with steel sleeves, and copper gaskets and gaskets are arranged on the roller body and located at two ends of the steel sleeves respectively. In this application in the pivot of roll body both ends, installation skeleton oil blanket and felt circle, the skeleton oil blanket is interference fit with the base, and the skeleton oil blanket is fixed a position by the base tang, and the felt circle can prevent that the felt circle from being pushed the condition that the roll body changeed motionlessly or crossed the pine felt circle and move. This multiple seal structure of application has improved sealed effect, increases the steel bushing between axle and the sealing member, has improved the life of sealing member. And dust is prevented from entering the bearing, so that the bearing fails.

Description

Multiple sealing structure of rotating roller body

Technical Field

The utility model relates to a mechanical seal technical field especially relates to a multiple seal structure of rotating roll body.

Background

As shown in fig. 1, in the conventional sealing structure of the rotating roller body, felt rings are mounted on shaft heads at two ends of the roller body, the side end of the roller body is in contact with the felt rings, the other side of the felt rings is in contact with a base, and a rolling bearing is mounted at the outer end of a shaft. The structure has higher requirement on the processing precision of each part, the thickness standard of the felt ring is inconsistent, the accumulated error is large after assembly, the felt ring is compressed by the roller body, the friction force is increased, the roller body does not rotate or the gap between the roller body and the felt ring is large, and the felt ring moves and cannot play a sealing role. When the roller body rotates, the shaft and the inner ring of the felt ring are in a friction state, and after the roller body is used for a long time, the felt ring is abraded, so that dust easily enters the bearing, and the bearing is invalid.

Wherein because service environment dust is great, current seal structure has into powder risk, leads to the bearing inefficacy, causes the feed system trouble. At present, the sealing of a rotating roller body is that shaft heads at two ends of the roller body are provided with felt rings, and outside of the felt rings, the shaft ends are provided with rolling bearings with unilateral sealing.

Therefore, the utility model provides a rotate multiple seal structure of roll body through increasing seal part, stops the purpose that the dust got into the bearing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multiple seal structure of rotating roll body solves and stops the conventional problem that makes the dust get into the bearing easily of rotating roll body.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a multiple sealing structure of a rotating roller body, which comprises a fixed base arranged at the end part of a rotating shaft of the roller body, a felt ring, a framework oil seal, a floating end bearing and a positioning end bearing, wherein the felt ring, the framework oil seal, the floating end bearing and the positioning end bearing are arranged in the fixed base and are sequentially away from the end side of the roller body;

the two ends of the roller body are sleeved with steel sleeves, and copper gaskets and washers are respectively arranged on the roller body and positioned at the two ends of the steel sleeves;

wherein a felt ring and a framework oil seal are arranged between the steel sleeve and the fixed base; the framework oil seal is installed in the fixed base in an interference fit mode and used for limiting the felt ring in the fixed base;

and a floating end bearing is arranged between the fixed base and the roller body rotating shaft and positioned at the outer side of the gasket.

Preferably, a driving wheel is arranged at one end of a rotating shaft of the roller body.

Preferably, a hole retainer ring is arranged on the fixed base and positioned outside the floating end bearing.

And further optimizing, the fixed base is provided with a reducing annular groove for respectively mounting a felt ring, a framework oil seal and a floating end bearing.

Compared with the prior art, the utility model discloses a beneficial technological effect: in this application in the pivot of roll body both ends, installation skeleton oil blanket and felt circle, the skeleton oil blanket is interference fit with the base, and the skeleton oil blanket is fixed a position by the base tang, and the felt circle can prevent that the felt circle from being extrudeed the roll body and changeed the condition of motionless or crossing pine felt circle cluster. This multiple seal structure of application has improved sealed effect, increases the steel bushing between axle and the sealing member, has improved the life of sealing member. And dust is prevented from entering the bearing, so that the bearing is disabled.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a schematic view of a rotating roll body in the prior art;

fig. 2 is the schematic view of the multiple sealing structure of the rotating roller body of the present invention.

Description of reference numerals: 1. a roller body; 2. a felt loop; 3. a floating end bearing; 4. a hole retainer ring; 5. a fixed base; 6. a driving wheel; 7. a copper washer; 8. framework oil seal; 9. a gasket; 10. positioning an end bearing; 11. A roller positioning sleeve; 12. and (5) steel sleeve.

Detailed Description

The embodiment discloses a multiple sealing structure of a rotating roller body, which comprises a fixed base 5 arranged at the end part of a rotating shaft of the roller body 1, a felt ring 2 arranged in the fixed base 5 and sequentially far away from the end side of the roller body 1, a framework oil seal 8 and a floating end bearing 3;

wherein the floating end bearing 3 and the positioning end bearing 10 are the same type of bearing; the bearings on the left side and the right side of the roller body 1 are the same type bearings;

the floating end bearing 3 on the left side of the roller body 1 is provided with a certain gap when being installed, and the floating end bearing 3 is allowed to have a certain space to move in a serial mode; and the positioning end bearing 10 on the right side is a positioning end, so that the bearing is not allowed to move, and the positioning of the roller is ensured.

Wherein fig. 1 is a sealing structure of a prior rotating roller body.

As shown in fig. 2, the rotating shafts at two ends of the roller body 1 are respectively installed on the fixed base 5, and a driving wheel 6 is installed at an end of the rotating shaft of the roller body 1 and is used for being in transmission connection with a driving mechanism.

In this embodiment, the lateral wall of the fixing base 5 is provided with a preformed groove attached to the shaft end of the roller body 1 in an extending manner, so that a transmission belt, a conveying belt or a material on the roller body 1 is blocked.

In the embodiment, two end parts of the roller body 1 are sleeved with steel sleeves 12, and two ends of the roller body 1, which are located at the steel sleeves 12, are respectively sleeved with a copper gasket 7 and a gasket 9 for limiting and sealing the steel sleeves 12;

wherein a felt ring 2 and a framework oil seal 8 are arranged between the steel sleeve 12 and the fixed base 5; the framework oil seal 8 is arranged in the fixed base 5 in an interference fit mode and used for limiting the felt ring 2 in the fixed base 5;

the fixed base 5 is provided with a reducing annular groove for respectively mounting the felt ring 2, the framework oil seal 8 and the floating end bearing 3;

a floating end bearing 3 is arranged between the fixed base 5 and the rotating shaft of the roller body 1 and positioned at the outer side of the gasket 9;

in this embodiment, a hole check ring 4 is installed on the fixed base 5 and outside the floating end bearing 3, so as to seal the floating end bearing 3 against dust, wherein an annular groove for installing the hole check ring 4 is formed in the fixed base 5.

A roller positioning sleeve 11 is arranged on a right rotating shaft of the roller body 1, wherein the roller positioning sleeve 11 and the felt ring 2 have the same structure.

The scheme of this application is in the pivot of roll body both ends, installation skeleton oil blanket and felt circle, and the skeleton oil blanket is interference fit with the base, and the skeleton oil blanket is fixed a position by the base tang, and the felt circle can prevent that the felt circle from being rotated the condition of motionless or crossing the pine felt circle cluster by extrusion roll body between skeleton oil blanket and base. And a steel sleeve with high finish degree is arranged among the felt ring, the framework oil seal and the rotating shaft, so that the felt ring is prevented from being invalid due to direct friction between the felt ring and the shaft. The copper gasket is arranged at the bottom of the shaft head and connected with the bottom of the steel sleeve, and the sealing effect is achieved. The sealing structure improves the sealing effect, and the steel sleeve is additionally arranged between the shaft and the sealing element, so that the service life of the sealing element is prolonged. And dust is prevented from entering the bearing, so that the bearing is disabled.

In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a multiple seal structure of rotating roller body which characterized in that: the device comprises a fixed base (5) arranged at the end part of a rotating shaft of a roller body (1), a felt ring (2) arranged in the fixed base (5) and sequentially far away from the end side of the roller body (1), a framework oil seal (8), a floating end bearing (3) and a positioning end bearing (10);

wherein two ends of the roller body (1) are sleeved with steel sleeves (12), and copper gaskets (7) and gaskets (9) are respectively arranged on the roller body (1) and positioned at two ends of the steel sleeves (12);

wherein a felt ring (2) and a framework oil seal (8) are arranged between the steel sleeve (12) and the fixed base (5); the framework oil seal (8) is installed in the fixed base (5) in an interference fit mode and used for limiting the felt ring (2) in the fixed base (5);

a floating end bearing (3) is arranged between the fixed base (5) and the rotating shaft of the roller body (1) and positioned at the outer side of the gasket (9).

2. A multiple seal structure of a rotating roll body according to claim 1, wherein: a driving wheel (6) is arranged at the end part of a rotating shaft of the roller body (1).

3. A multiple seal structure of a rotating roll body according to claim 1, wherein: and a hole check ring (4) is arranged on the fixed base (5) and positioned outside the floating end bearing (3).

4. A multiple seal structure for a rotating roll body according to claim 1, wherein: the fixed base (5) is provided with a reducing annular groove for respectively installing the felt ring (2), the framework oil seal (8) and the floating end bearing (3).