CN2294238Y - Roller for endless conveyer - Google Patents

Abstract

The utility model provides a roller for a belt type conveyer, which is composed of a roller body, cover plates, a shaft, a bearing box, a bearing, a sealing element, a blocking ring, etc., wherein, the bearing, the sealing element, and the blocking ring are arranged in the bearing box; the bearing and the inner ring of the sealing element are directly arranged on the shaft; the cover plates are fixed at both ends of the roller body; the shaft is directly penetrated through the center holes of the cover plates and is fixed with the cover plates together. The utility model has the advantages of less detail, simple structure, low cost, easy maintenance, less noise, etc.

Description

Carrying roller

The utility model belongs to a kind of carrying roller, relates in particular to be used to the carrying roller that supports adhesive tape and transport material in the belt conveyer.

Carrying roller on the belt conveyer of present domestic public use is by roller, major axis, bearing, bearing seat and sealing member are formed, major axis passes roller center, the roller outside is stretched out at two ends, bearing seat, bearing and sealing member all are contained in the roller, this carrying roller, rotor inertia is big, the requirement on machining accuracy height, maintenance is difficult, noise is big etc. during work, for this reason, Chinese patent 91200181.X discloses a kind of novel carrying roller, and it is with bearing seat, bearing, sealing member and spacer shell constitute axle head, are stuck on the roller rack, roller, axle and plate washer constitute the carrying roller main body, it is big that this carrying roller has solved rotor inertia, the problem that radial runout is big, but its axle cooperates with bearing and need pass through spacer shell, between axle and the plate washer centre hole axle sleeve etc. is arranged, this structure has increased the quantity of carrying roller part and the man-hour of process and assemble, has improved the cost of carrying roller.

It is few that the purpose of this utility model provides a kind of parts, simple in structure, and price is low, easy-maintaining, the carrying roller that noise is little.

The technical scheme of this purpose is: carrying roller is made up of carrying roller body, cover plate, bearing box, axle and the ring washer that is contained in bearing, sealing member and sealing member outer end on the axle, cover plate is fixed on the two ends of carrying roller body, axle passes cover central hole and is fixed together with it, and the inner ring of bearing and sealing member all directly is contained on the axle.

The position of axle abut against cover outer face is the boss greater than cover central hole, and this boss is the positioning step of axle in cover central hole.

Because this carrying roller adopts minor axis directly fixing on the cover board, bearing cone needn't can directly be contained on the axle by axle sleeve, axle has adopted the transition fit that interference is arranged slightly with bearing inner ring, needn't on axle, add key or other type of drive, therefore simple, the saving parts of this idler structure can improve intensity and precision, and easy-maintaining, cost is low, and noise is little etc.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is the structure cutaway view of the utility model embodiment.

Fig. 2 is Fig. 1 right elevation.

Embodiment: carrying roller is by carrying roller body 1, cover plate 2, bearing box 6, axle 9, bearing 10 compositions such as grade, bearing 10, the outer ring of big sealing member 7 and ring washer 5 is contained in the bearing box 6, cover plate 2 is fixed on the two ends of carrying roller body 1, axle 9 passes the centre hole 3 of cover plate 2 and is fixed together with cover plate 2, and the inner ring of bearing 10 and little sealing member 8 all is contained on the axle 9, and adopts the transition fit that interference is arranged slightly, the position of axle 9 abut against cover 2 outer faces is the boss 4 greater than cover plate 2 centre holes 3, this boss 4 is the positioning step of axle 9 when cooperating with cover plate 2 centre holes 3, and an end of the outer garden cylinder of bearing box 6 has two parallel planes 11, matches with the roller rack of belt conveyer in this plane 11.The end of screw 12 contacts with bearing 10 inner rings when assembling.

This carrying roller places the parallel plane 11 of the bearing box 6 at carrying roller body 1 two ends on the roller rack in use, and when adhesive tape turned round, bearing box 6 was motionless, and the inner ring of carrying roller body 1 and axle 9 and bearing 10 rotates with the motion of adhesive tape.

Claims (3)

1, a kind of carrying roller, comprise carrying roller body, cover plate, axle, bearing box and be contained in bearing box interior bearing, sealing member and ring washer, it is characterized in that: cover plate is fixed on carrying roller body two ends, and axle passes cover central hole and is fixed together with it, and the inner ring of bearing, sealing member all is contained on the axle.

2, carrying roller according to claim 1 is characterized in that: the position of axle abut against cover outer face is the boss greater than cover central hole.

3, carrying roller according to claim 1 and 2 is characterized in that: on the outer garden cylinder of bearing box two parallel planes are arranged.

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