CN203173383U

CN203173383U - Novel carrier roller

Info

Publication number: CN203173383U
Application number: CN 201220706835
Authority: CN
Inventors: 马开放; 崔成春; 寿燕青; 王明
Original assignee: Triumph Heavy Industry Co Ltd
Current assignee: Triumph Heavy Industry Co Ltd
Priority date: 2012-12-19
Filing date: 2012-12-19
Publication date: 2013-09-04
Anticipated expiration: 2022-12-19

Abstract

The utility model provides a novel carrier roller, and belongs to the technical field of carrier rollers of conveyors. The novel carrier roller comprises a cylinder, a shaft and two cylinder covers, wherein the shaft is arranged inside the cylinder, the two cylinder covers are arranged at the left end and the right end of the cylinder, a containing groove is formed in the center of the outer side face of each cylinder cover, and the left end and the right end of the shaft respectively penetrate out along the shaft centers of the containing grooves. A check ring, a bearing, an inner seal ring, an outer seal ring, a covering cap and a protection cover are sequentially arranged on positions, in each containing groove, of the shaft in the direction from the bottom to the port of each containing groove, and each protection cover is composed of a covering board and a pipe. The shaft is a stepped shaft, one face, contacted with each check ring, of each bearing abuts against the shaft shoulder of the shaft, shaft check rings are arranged between the outer seal rings and the protection covers, a relief groove is form in a position, corresponding to each covering board, of the shaft, and the outer side face of each covering board abuts against each relief groove. According to the long-acting high-speed carrier roller, processing accuracy of the shaft is high, rotating resistance of the carrier roller can be reduced, axial movement of the shaft can be prevented during rotation, dust and other sundries are prevented from entering the carrier roller, the seal portion of the carrier roller can be protected well, and service life is prolonged.

Description

A kind of novel carrying roller

Technical field

The utility model relates to a kind of carrying roller of conveyer, refers to a kind of long-acting High-speed Idler especially.

Background technology

As shown in Figure 1, the carrying roller of existing conveyer comprises cylindrical shell 1 ', is installed on axle 2 ' and the cover 3 ' that is installed on cylindrical shell 1 ' the left and right two ends in the cylindrical shell 1 '.The lateral surface center of cover 3 ' is provided with storage tank 4 '.The left and right two ends of axle 2 ' pass cover 3 ' along the axle center of storage tank 4 ' respectively.The axle 2 ' that is positioned at storage tank 4 ' upward is equipped with back-up ring 5 ', bearing 6 ', inner seal ring 7 ', exterior seal ring 8 ', cover cap 9 ' and protective cover 10 ' by bottom land to the notch direction successively.V shaped ring 11 ' is installed between cover cap 9 ' and the protective cover 10 '.The axle 2 ' in the protective cover 10 ' outside is gone up shaft block ring 12 ' is installed.There is following shortcoming in existing carrying roller:

1, axle 2 ' is to draw optical axis, and precision is not high, does not have axial location between axle 2 ' and the bearing 6 ', and shaft block ring 12 ' is positioned at the storage tank 4 ' outside, causes end float misalignment easily, and shaft block ring 12 ' easy-to-rust;

2, the respective outer side edges of cover cap 9 ' and protective cover 10 ' is undesirable, easily cause carrying roller dustproof and waterproof performance undesirable, v shaped ring 11 ' is installed between cover cap 9 ' and protective cover 10 ', and V-type circle 11 ' easily produces with cover cap 9 ' and rubs in the carrying roller rotary course, has increased the rotational resistance of carrying roller.

3, bearing 6 ' adopts KA series bearing, and its rotational resistance is big, causes the service life of carrying roller short.

The utility model content

The purpose of this utility model is to provide a kind of novel carrying roller; its working accuracy height, can reduce the rotational resistance of carrying roller, can prevent the end float misalignment of axle during its rotation, prevent that foreign material such as dust from entering carrying roller inside; the carrying roller hermetic unit is better protected, and improve service life.

To achieve these goals, technical solution of the present utility model is: a kind of novel carrying roller, comprise cylindrical shell, be installed on the axle in the cylindrical shell and be installed on a cylindrical shell left side, two covers at right two ends, the lateral surface center of each described cover is respectively equipped with storage tank, the left side of described axle, right two ends pass cover along the axle center of storage tank respectively, the axle that is positioned at described storage tank upward is equipped with back-up ring by bottom land to the notch direction successively, bearing, inner seal ring, exterior seal ring, cover cap and protective cover, described protective cover is made of cover plate and body, wherein said axle is stepped shaft, a described one side that contacts with back-up ring of holding is against on the shaft shoulder of axle, axle between described exterior seal ring and the protective cover is gone up shaft block ring is installed, the axle corresponding with described cover plate position is provided with back stop slot, and the lateral surface of described cover plate is against on the back stop slot.

A kind of novel carrying roller of the utility model, wherein be provided with the body concentric with the described cover plate of cover cap opposite face and be positioned at annular first flange of body outside, form circular groove between described first flange and the body, be provided with annular second flange with the described cover cap of cover plate opposite face, described second flange inserts in the circular groove, is full of grease in the described circular groove.

After adopting such scheme, a kind of novel carrying roller of the utility model is processed as stepped shaft with axle, and its working accuracy can reduce the rotational resistance of carrying roller than the existing plain shaft precision height that draws; Axle passes through shaft shoulder axial location with bearing; and be processed with back stop slot on the axle; can prevent the end float misalignment of the axle of carrying roller; the design back stop slot has guaranteed accuracy and the fastness of protective cover location; prevent that well foreign material such as dust from entering carrying roller inside, the carrying roller hermetic unit is better protected, the shaft block ring position is placed between exterior seal ring and the protective cover in addition; can prevent the shaft block ring corrosion, therefore the service life of having improved the long-acting High-speed Idler of the utility model.

Further beneficial effect of the present utility model is: by annular first flange is set over cap setting, make between first flange and the body and form circular groove, at cover cap annular second flange is set, second flange inserts in the circular groove, in circular groove, be full of grease, can effectively accomplish dustproof and waterproof, thereby improved performance and the service life of carrying roller, this structure design has saved existing v shaped ring in addition, does not so just have the hidden danger of wearing and tearing cover cap and increase roller revolving resistance;

Description of drawings

Fig. 1 is that the master of existing carrying roller looks cutaway view;

Fig. 2 is that the master of a kind of novel carrying roller of the utility model looks cutaway view;

Fig. 3 is that the cover cap master of a kind of novel carrying roller of the utility model looks cutaway view;

Fig. 4 is that the over cap master of a kind of novel carrying roller of the utility model looks cutaway view.

Below in conjunction with accompanying drawing, be described further by the utility model of embodiment;

The specific embodiment

To shown in Figure 4, a kind of novel carrying roller of the utility model comprises cylindrical shell 1, is installed on the axle 2 in the cylindrical shell 1 and is welded in two covers 3 at cylindrical shell 1 left and right two ends as Fig. 2.The lateral surface center of each cover 3 is processed with storage tank 4 respectively.The left and right two ends of axle 2 pass two covers 3 along the axle center of storage tank 4 respectively.The axle that is positioned at storage tank 4 is equipped with back-up ring 5, bearing 6, inner seal ring 7, exterior seal ring 8, cover cap 9 and protective cover 10 by bottom land to the notch direction on 2 successively.Axle 2 is stepped shaft.Holding axle 6 one sides that contact with back-up ring 5 is against on the shaft shoulder 18 of axle 2.On the axle 2 between exterior seal ring 8 and the protective cover 10 shaft block ring 13 is installed.Protective cover 10 is made of cover plate 11 and body 12.Be processed with back stop slot 17 on the axle 2 corresponding with cover plate 11 positions.The lateral surface of cover plate 11 is against on the back stop slot 17.Be processed with body 12 concentrics on the cover plate 11 of cover cap 9 opposite faces and be positioned at annular first flange 14 of body 12 outsides.Form circular groove 15 between first flange 14 and the body 12.Insert in the circular grooves 15 with being processed with annular second flange, 16, the second flanges 16 on the cover cap 9 of cover plate 11 opposite faces, be full of grease in the circular groove 15.

The above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineering staff in this area make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.

Claims

1. novel carrying roller, comprise cylindrical shell (1), be installed on the axle (2) in the cylindrical shell (1) and be installed on cylindrical shell (a 1) left side, two covers (3) at right two ends, the lateral surface center of each described cover (3) is respectively equipped with storage tank (4), the left side of described axle (2), right two ends pass cover (3) along the axle center of storage tank (4) respectively, the axle (2) that is positioned at described storage tank (4) upward is equipped with back-up ring (5) by bottom land to the notch direction successively, bearing (6), inner seal ring (7), exterior seal ring (8), cover cap (9) and protective cover (10), described protective cover (10) is made of cover plate (11) and body (12), it is characterized in that: described axle (2) is stepped shaft, the described one side that contacts with back-up ring (5) of axle (6) of holding is against on the shaft shoulder (18) of spool (2), axle (2) between described exterior seal ring (8) and the protective cover (10) is gone up shaft block ring (13) is installed, the axle (2) corresponding with described cover plate (11) position is provided with back stop slot (17), and the lateral surface of described cover plate (11) is against on the back stop slot (17).

2. novel carrying roller as claimed in claim 1, it is characterized in that: be provided with body (12) concentric with the described cover plate (11) of cover cap (9) opposite face and be positioned at outside annular first flange (14) of body (12), form circular groove (15) between described first flange (14) and the body (12), be provided with annular second flange (16) with the described cover cap (9) of cover plate (11) opposite face, described second flange (16) inserts in the circular groove (15), and described circular groove is full of grease in (15).