CN202743932U

CN202743932U - Rotary drum bearing anti-dust device for conveyor

Info

Publication number: CN202743932U
Application number: CN 201220408062
Authority: CN
Inventors: 王建兵
Original assignee: Wuxi Jiesi Logistics Equipment Co Ltd
Current assignee: Wuxi Jiesi Logistics Equipment Co Ltd
Priority date: 2012-08-17
Filing date: 2012-08-17
Publication date: 2013-02-20
Anticipated expiration: 2022-08-17

Abstract

The utility model relates to a rotary drum bearing anti-dust device for a conveyor. The rotary drum bearing anti-dust device for the conveyor comprises a rotary drum body, a rotary drum shaft, a bearing and a bearing seat, wherein the bearing and the bearing seat are installed on two ends of the rotary drum shaft. The rotary drum shaft runs through the central part of the rotary drum body, the bearing is installed in the bearing seat, and the rotary shaft is mounted in the bearing. An inner cap is fixedly installed on the inner side face of the bearing seat, a seal disc is further arranged on the rotary drum shaft and the rotary drum shaft is arranged in the inner side of the bearing, one end of the seal disc is tightly pressed with an inner ring of the bearing, the other end of the seal disc is provided with ladder-shaped seal teeth, one end of the inner cap is provided with a ladder-shaped groove, and the ladder-shaped groove is connected with the ladder-shaped seal teeth in clamped mode. By the matching and clamping of the ladder-shaped teeth and the ladder-shaped groove, wherein the ladder-shaped is arranged between the inner cap and the seal disc, the labyrinth sealing is formed, thereby guaranteeing the good sealing performance of bearing. The sealing effect is good, and the reliability is high, the service life of the bearing is prolonged.

Description

The conveyer dust keeper of roller bearings

Technical field

The utility model relates to the logistics equipment technical field, especially the dust keeper of converyor roller bearing.

Background technology

Band conveyor is applicable to the conveying of the part goods such as all kinds of casees, bag, pallet, is widely used in the industries such as light industry, machinery, electronics, food, metallurgy, medical treatment, can carry the very large material of single-piece weight, or bear larger impact load.On the conveyor line, article can position article, the complicated conveyings such as go-on-go, storage, processes and automatic loading and unloading in course of conveying, then article need to be accumulated this moment.Belt conveyor roller of the prior art is installed by bearings, the wool felt sealing is adopted in the sealing of bearing, it is simple in structure, cost is low, but this sealing means is the complete sealed bearings of aforesaid way in use, and the tiny foreign material such as dust easily enter in the roller bearing seat, cause grease emulsion deterioration, inefficacy, thereby cause bearing because of bad lubricated the damage, its service life is low.

The utility model content

The applicant can't complete hermetic shortcoming for above-mentioned existing production centre bearer, the dust keeper of a kind of conveyer of rational in infrastructure, good airproof performance with roller bearings is provided, thereby make it easy for installation, actv. prevents that the tiny foreign material such as dust from entering in the roller bearing seat, prolongs the service life of bearing.

The technical scheme that the utility model adopts is as follows:

A kind of conveyer dust keeper of roller bearings, comprise roller tube, drum shaft and end mounted bearing thereof and bearing seat, drum shaft is through the center of roller tube, described bearing is arranged in the described bearing seat, described drum shaft is installed in the described bearing, inner cap is fixedly installed in the medial surface of described bearing seat, on the drum shaft of described bearing inboard seal disc is housed also, one end of seal disc and bearing inner ring compress, its other end has trapezoidal sealing tooth, and inner cap one end has the trapezoidal groove with the clamping of trapezoidal sealing tooth.

As further improvement in the technical proposal:

Seal disc one end is provided with step, and the height of described step surface is lower than the height of bearing inner ring;

The shaft hole inner wall of inner cap has sealing oil groove.

The beneficial effects of the utility model are as follows:

The utility model discloses a kind of conveyer dust keeper of roller bearings, it is simple and compact for structure, convenient for installation and maintenance, utilize the clamping that cooperates of trapezoidal sealing tooth and trapezoidal groove between inner cap and the seal disc, form labyrinth seal, guaranteed the good sealing property of bearing, good sealing effect, reliability is high, has prolonged the service life of bearing.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is A section partial enlarged drawing among Fig. 1.

Wherein: 1, roller bearing end cap; 2, bolt; 3, bearing seat; 4, outside race; 5, nut; 6, ball; 7, bearing inner ring; 8, weld seam; 9, roller tube; 10, drum shaft; 11, sealing oil groove; 12, inner cap; 1201, trapezoidal groove; 13, seal disc; 1301, trapezoidal sealing tooth.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.

As depicted in figs. 1 and 2, the conveyer of the present embodiment dust keeper of roller bearings, comprise roller tube 9, (bearing comprises bearing inner ring 7 for drum shaft 10 and end mounted bearing thereof, ball 6 and outside race 4) and bearing seat 3, drum shaft 10 is through the center of roller tube 9, roller tube 9 is welded on the drum shaft 10, stay weld seam 8 respectively with on the internal face of drum shaft 10 and roller tube 9, bearing is arranged in the bearing seat 3, drum shaft 10 is installed in the bearing, inner cap 12 is fixedly installed in the medial surface of bearing seat 3, roller bearing end cap 1 is installed on the bearing lateral surface, and simultaneously roller bearing end cap 1 and inner cap 12 is fixed on the bearing seat 3 by bolt 2; The bearing outside is by nut 5 axial location, on the drum shaft 10 of bearing inboard seal disc 13 is housed also, one end of seal disc 13 and bearing inner ring 7 compress, seal disc 13 1 ends are provided with step, the height of step surface is lower than the height of bearing inner ring 7, make simultaneously the bearing axial restraint, seal disc 13 other ends have trapezoidal sealing tooth 1301, inner cap 12 1 ends have the trapezoidal groove 1201 with trapezoidal sealing tooth 1301 clampings, thereby formed labyrinth seal, actv. has guaranteed the sealing effectiveness of bearing, and bearing oil can not run off; The shaft hole inner wall of inner cap 12 has sealing oil groove 11, further guarantees the sealing effectiveness of bearing.

Above description is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range within protection domain of the present utility model, can be done any type of modification referring to claim.

Claims

1. a conveyer is with the dust keeper of roller bearings, comprise roller tube (9), drum shaft (10) and end mounted bearing thereof and bearing seat (3), drum shaft (10) is through the center of roller tube (9), described bearing is arranged in the described bearing seat (3), described drum shaft (10) is installed in the described bearing, inner cap (12) is fixedly installed in the medial surface of described bearing seat (3), it is characterized in that: on the drum shaft (10) of described bearing inboard seal disc (13) is housed also, one end of seal disc (13) and bearing inner ring (7) compress, its other end has trapezoidal sealing tooth (1301), and inner cap (12) one ends have the trapezoidal groove (1201) with trapezoidal sealing tooth (1301) clamping.

2. conveyer as claimed in claim 1 is with the dust keeper of roller bearings, and it is characterized in that: seal disc (13) one ends are provided with step, and the height of described step surface is lower than the height of bearing inner ring (7).

3. conveyer as claimed in claim 1 is with the dust keeper of roller bearings, and it is characterized in that: the shaft hole inner wall of inner cap (12) has sealing oil groove (11).